Mac Pro (8 core with the D700 GPU's) with Dell U2713H monitors and text is fuzzy and monitor doesn't look as clear as my 2009 27" iMac. Any suggestions on setup, calibration or known issues?

Are you going DisplayPort to your Thunderbolt connection (mini DisplayPort)?

Try This. It may help resolve this widespread Dell monitor problem using displayport to thunderbolt cable.

http://embdev.net/topic/284710#3027030

By way of other feedback, I am using a Dell SP2309W display with my quad-core Mac Pro with D300 GPUs and hooked up using the HDMI connections. My result was quite different than yours. Text is sharper and overall color is stronger than before, clearly an improvement over previous Mac Pro (late 2008 version).

So why do we get different results? Any chance it's because you are using dual monitors? Do you get the same result with just one hooked up?

The "patch" using the ruby command in Terminal creates an Override file that you copy into the System/Library/Displays/ folder. From what I understand it will be remain in that folder unless a future Maverick upgrade erases it. That's why a keep a copy of the patch so I can reuse it again and reinsert it into the Displays folder. Don't know for sure if it will be permament or not. Time will tell. When I originally had the problem, I was ready to return my 2013 Mac Pro if I couldn't fix it and wait for a future version. BTW, the HDMI output didn't help at all with my Dell U3014 and U3011 displays, but the patch did the job fortunately. Apparently they have the same problem with some of the retina Macbook Pro's using a Dell monitor. Good Luck.

Facing the same issue with MBPR 15" with Dell U2713H , I applied the above script , it fixed the color a little bit but the text still an issue .

Any workaround or driver upload to fix this , knowing that i tried all the possbile cable with no luck (HDMI , DVI , DP ) .

P.S: The screen works great with my windows machine

Did you try the patch? I know it took me a couple of tries before I understood how it worked. Maybe it doesn't work for your particular monitor. As I said if it didn't work for me I was ready to return my 2013 Mac Pro until they figured a workaround.

I've had good luck with Dell monitors in the past but I know how frustrating it gets dealing with their inferior support. I buy my Dell monitors lately thru Costco who has an indefinite return policy on monitors.

I'm not sure if you've returned the monitor but I had the same problem with my new Mac Pro.

Basically the Dell monitor doesn't identify itself properly via Mini Display Port/Thunderbolt and newer Macs think it's a TV so the wrong kind of signal is sent to the monitor.

It's easily fixed - don't be put off by the instructions below, I've just done it and it takes less than a minute.

Here's what you do:

Download the Ruby script (click 'patch-edid.rb' in yellow):

http://embdev.net/topic/284710#3027030

• Move the downloaded 'patch-edid.rb' file to your desktop
• Open the Terminal app from: /Applications/Utilities/Terminal
• In Terminal, type the following and hitting enter (or copy and paste it into Terminal and hit enter):

ruby ~/Desktop/patch-edid.rb

• Go to your desktop
• Check that a new folder was created - something like: "DisplayVendorID-10ac"
• Open the Display Overrides folder at:

/Macintosh HD/System/Library/Displays/Overrides/

• Copy the new folder into the /Overrides directory
• Authenticate with your user password (if asked)
• Restart your mac

For the first few seconds after restart it might look like nothing has changed but by the time you see the login screen (or your Desktop) everything will look as it should.

That's it - you won't have to do this again unless you erase and reinstall your mac.

Hope that helps someone.

Cheers

Ben

Any workaround or driver upload to fix this

The Mac does not use any "Driver downloads". It uses the capabilities the device says it has to set screen resolution, timing, and all other parameters.

The best signal is provided by DisplayPort. But as others have stated above, Bugs in the Dell EDID ("what are your capabilities?") mean the Mac treats it as a TV set, and the color and a few other things are wrong. The downloaded software should fix those problems. Make certain you have set the maximum available resolution.

HDMI is very troublesome. You need special cables to get acceptable results above 1920 by 1080p.

Thought I'd add a quick update.

I've just had a Dell U2713H arrive. I've plugged it in to my new mac pro using the Mini Display port to Thunderbolt option.

It defaulted to RGB mode with a resolution of 2560x1440 @ 60Hz and all looks good.

Perhaps there was a fix in the latest OS update, and I was all set for some terminal tinkering!

Anyway, it works, of course none of the Dell software does but we knew that 🙂

R

Perhaps there was a fix in the latest OS update,

Yes, Users here report there was a fix for Dell U2713H in 10.9.4. The "workarounds" that users had developed were incorporated as part of the profile for this device. Now, no tinkering required!

hi rich

do you think this would work with a 27 inch imac 2009

I've just bought a dell 2713hm today and found the usual problems

regards

andy

hi grant

do you think this would work with a 27 inch iMac 2009-osx maverick 10.9.4

I've just bought a dell 2713hm today and found the usual problems

whats the work rounds if any or should i buy a cable or a mini display port to dual link dvi adapter

regards

andy